| Abstrakt: |
The paper deals with criteria for selecting parameters of the flotation model providing safe modes of water purification. It presents the method of solving water purification problems by flotation through numerical methods. The obtained solution of the differential equations system makes it possible to continue research works on creation of optimal safety regimes for water purification. The diagrams of obtained solutions in this work qualitatively match those obtained earlier by the solution authors. In the authors' opinion, it proves, on the one hand, the correctness of the chosen approach and, on the other hand, the achievement of high accuracy. At the same time, quantitative evaluation criteria for the chosen method can be recommended when solving specific tasks of flotation purification of both natural and waste water. The results obtained correlate well enough with the experimental data and can be used to control the flotation wastewater processes with the possibility of using stable and in this sense safe purification modes. In this case, the adequacy is observed when carrying out flotation treatment of various types of contaminated wastewater, both with hydrophobic and hydrophilic surface, as well as particles with a surface that includes alternating water repellent and water-attracting zones, and, in addition, processes forming aerofloccules. In these cases, the flotation process description may include systems of hydrophilic and hydrophobic particles. The approach used allows determining the flotation wastewater purification mode which is safe from the point of view of stability. [ABSTRACT FROM AUTHOR] |
